261043440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{155383}}^1$

素因数の和:155406

約数の個数: 80

約数和(自身を含む): 924845568

約数和(自身を除く): 663802128

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 155383, 310766, 466149, 621532, 776915, 932298, 1087681, 1243064, 1553830, 1864596, 2175362, 2330745, 2486128, 3107660, 3263043, 3729192, 4350724, 4661490, 5438405, 6215320, 6526086, 7458384, 8701448, 9322980, 10876810, 12430640, 13052172, 16315215, 17402896, 18645960, 21753620, 26104344, 32630430, 37291920, 43507240, 52208688, 65260860, 87014480, 130521720, 261043440]

約数ペア:

[(1, 261043440), (2, 130521720), (3, 87014480), (4, 65260860), (5, 52208688), (6, 43507240), (7, 37291920), (8, 32630430), (10, 26104344), (12, 21753620), (14, 18645960), (15, 17402896), (16, 16315215), (20, 13052172), (21, 12430640), (24, 10876810), (28, 9322980), (30, 8701448), (35, 7458384), (40, 6526086), (42, 6215320), (48, 5438405), (56, 4661490), (60, 4350724), (70, 3729192), (80, 3263043), (84, 3107660), (105, 2486128), (112, 2330745), (120, 2175362), (140, 1864596), (168, 1553830), (210, 1243064), (240, 1087681), (280, 932298), (336, 776915), (420, 621532), (560, 466149), (840, 310766), (1680, 155383)]